Servo corner inserting device

Abstract

The utility model discloses a servo corner inserting device which comprises a supporting arm, and a driving mechanism is arranged on the supporting arm. A first corner inserting mechanism and a second corner inserting mechanism are arranged on the supporting arm in a sliding mode. The driving mechanism is connected with the first corner inserting mechanism and the second corner inserting mechanism and drives the first corner inserting mechanism and the second corner inserting mechanism to be mutually or away from each other on the supporting arm. The driving mechanism is arranged to drive the first corner inserting mechanism and the second corner inserting mechanism to be close to or far away from each other, the first corner inserting mechanism and the second corner inserting mechanism act on the two sides of the packaging bag at the same time, and the situations that corner inserting on one side of the packaging bag is fast, corner inserting on the other side is slow, corner inserting stability is poor and the packaging bag is prone to being pushed to one side are avoided; precise control over the corner inserting position can be achieved, and the corner inserting quality and stability of the packaging bag are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, and more specifically, to a servo corner insertion device. Background Technology

[0002] In packaging machines, the corner inserting device is a crucial component. It's responsible for inserting the corners of the packaging bag opening to facilitate subsequent sealing and other processes. Existing corner inserting devices typically use cylinders, with compressed air driving a piston rod to move the corner inserting plate. However, in actual operation, it's difficult for the two cylinders to move perfectly synchronously. One cylinder may move slightly faster than the other, resulting in uneven force on both sides of the packaging bag. The faster-moving cylinder may push the bag to the other side, causing the corner inserting position to shift, leading to insufficient stability. Utility Model Content

[0003] This utility model provides a servo corner insertion device to solve the problems mentioned in the background art. To achieve the above objective, this utility model provides the following technical solution: a servo corner insertion device, including a support arm, on which a drive mechanism is provided; a first corner insertion mechanism and a second corner insertion mechanism are slidably disposed on the support arm, the first corner insertion mechanism and the second corner insertion mechanism having the same structure and being symmetrically arranged; the drive mechanism is respectively connected to the first corner insertion mechanism and the second corner insertion mechanism, and drives the first corner insertion mechanism and the second corner insertion mechanism to move away from each other on the support arm.

[0004] Preferably, the driving mechanism includes a fixed bracket, a first servo motor, a first reducer, a swing arm, a first connecting rod, and a second connecting rod; the fixed bracket is connected to the support arm, the first reducer is mounted on the fixed bracket, the output end of the first servo motor is connected to the first reducer, and the output end of the first reducer is connected to the swing arm; both ends of the swing arm are rotatably connected to the first connecting rod and the second connecting rod, respectively, the other end of the first connecting rod is rotatably connected to the first angle-fitting mechanism, and the second connecting rod is rotatably connected to the second angle-fitting mechanism.

[0005] Preferably, the driving mechanism includes a second servo motor, a second reducer, and a belt; the belt is disposed on the support arm and is connected to the first corner fitting mechanism and the second corner fitting mechanism respectively; the second servo motor is connected to the belt drive through the second reducer; the belt drives the first corner fitting mechanism and the second corner fitting mechanism to move closer to or further away from each other.

[0006] Preferably, the first corner insertion mechanism includes a movable plate, a pull rod seat, a support plate, an upper corner insertion unit, and a lower corner insertion unit; the movable plate is slidably connected to the support arm; the pull rod seat is disposed on the movable plate, and the first connecting rod is rotatably connected to the pull rod seat; the support plate is disposed on the movable plate, and the upper corner insertion unit and the lower corner insertion unit are respectively disposed on the support plate.

[0007] Preferably, the upper corner unit includes an upper corner shaft, an upper connecting block, and a corner forming plate. One end of the upper corner shaft is connected to the support plate, and the other end is connected to the upper connecting block. The corner forming plate includes a vertical plate and an inclined plate. The vertical plate is connected to the upper connecting block by bolts, and the front end of the inclined plate is provided with a tapered corner. The lower corner unit includes a lower corner shaft, a lower connecting block, and a lower corner plate. One end of the lower corner shaft is connected to the support plate, and the other end is connected to the lower connecting block. The lower corner plate is connected to the upper connecting block by bolts.

[0008] Preferably, the upper insertion angle shaft and the lower insertion angle shaft have the same structure. The lower insertion angle shaft includes a support rod, a locking block, and a linear optical axis. One end of the support rod is connected to the support plate, and the linear optical axis is slidably disposed in the support rod. The locking block is disposed at the end of the support rod and is used to fix the linear optical axis in the support rod.

[0009] Preferably, the surface of the linear optical axis is provided with a scale.

[0010] Preferably, the movable plate and the support arm are connected by a pair of parallel slide rail assemblies. The slide rail assembly includes a guide rail and a slider. The guide rail is bolted to the support arm, and the slider is slidably engaged with the guide rail. The movable plate and the slider are bolted together.

[0011] Preferably, the support plate is provided with a pair of parallel mounting grooves, the movable plate is provided with two internal threaded holes that respectively cooperate with the mounting grooves, the mounting grooves are provided with locking screws, and the locking screws pass through the mounting grooves and are threaded onto the internal threaded holes.

[0012] Preferably, it further includes a limiting module disposed on the support arm. The limiting module includes a limiting bracket and a proximity switch. The limiting bracket is provided with a mounting groove. The proximity switch is mounted in the mounting groove in an adjustable position, and its detection end is set towards the first insertion angle mechanism.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model sets up a driving mechanism to simultaneously drive the first corner insertion mechanism and the second corner insertion mechanism to move closer or further away. The driving mechanism can adopt a swing arm transmission or belt transmission structure, which provides smooth transmission and can achieve precise speed and position control. The driving mechanism drives the first corner insertion mechanism and the second corner insertion mechanism to act on both sides of the packaging bag at the same time, avoiding the situation where one side of the packaging bag inserts the corner faster than the other, the corner insertion stability is poor, and the packaging bag is easily pushed to one side. It can achieve precise control of the corner insertion position and effectively improve the corner insertion quality and stability of the packaging bag. Attached Figure Description

[0014] Figure 1 This is a structural diagram of the servo insertion device according to an embodiment of the present invention;

[0015] Figure 2 This is another structural view of the servo insertion device according to an embodiment of the present invention;

[0016] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 This is a front view of the servo insertion device according to an embodiment of the present invention;

[0018] Figure 5 This is a side view of the servo insertion device according to an embodiment of the present invention;

[0019] Figure 6 This is a top view of the servo insertion device according to an embodiment of the present invention;

[0020] Figure 7 This is a schematic diagram of the existing technology;

[0021] exist Figures 1 to 6 In the diagram, the correspondence between the component names and the drawing numbers is as follows:

[0022] 1--Support arm, 2--Drive mechanism, 21--Fixed bracket, 22--First servo motor, 23--First reducer, 24--Swing arm, 25--First connecting rod, 26--Second connecting rod, 3--First insertion angle mechanism, 31--Moving plate, 32--Tie rod seat, 33--Support plate, 331--Mounting groove, 34--Upper insertion angle unit, 341--Upper insertion angle shaft, 342--Upper connecting block, 343 --Pocket corner forming plate, 35--Lower insertion corner unit, 351--Lower insertion corner shaft, 3511--Support rod, 3512--Locking block, 3513--Linear optical axis, 35131--Scale, 352--Lower connecting block, 353--Lower insertion corner plate, 4--Second insertion corner mechanism, 5--Slide rail assembly, 51--Guide rail, 52--Slider, 6--Limit module, 61--Limit bracket, 62--Proximity switch. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this disclosure. The following examples are used to illustrate this utility model, but should not be used to limit the scope of this utility model.

[0024] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Please refer to Figures 1 to 7This utility model provides a servo corner insertion device, including a support arm 1, on which a drive mechanism 2 is provided; a first corner insertion mechanism 3 and a second corner insertion mechanism 4 are slidably disposed on the support arm 1, the first corner insertion mechanism 3 and the second corner insertion mechanism 4 have the same structure and are symmetrically arranged; the drive mechanism 2 is connected to the first corner insertion mechanism 3 and the second corner insertion mechanism 4 respectively, and drives the first corner insertion mechanism 3 and the second corner insertion mechanism 4 to move away from each other on the support arm 1.

[0027] Please refer to Figure 7 , Figure 7 This is a schematic diagram of a conventional corner-inserting device. Most existing corner-inserting devices use cylinders to provide power, with compressed air driving a piston rod to move the corner-inserting plate. Since it is difficult for the two cylinders to move completely synchronously in actual operation, one cylinder may move slightly faster than the other, resulting in uneven force on both sides of the packaging bag. The faster-moving cylinder may push the packaging bag to the other side, causing the corner-inserting position to shift and resulting in insufficient stability.

[0028] In this embodiment of the invention, the drive mechanism 2 uses a servo motor as its power source. It can simultaneously act on the first corner insertion mechanism 3 and the second corner insertion mechanism 4 via a linkage structure, or simultaneously drive the first corner insertion mechanism 3 and the second corner insertion mechanism 4 via a synchronous belt. Since these two corner insertion mechanisms are slidably mounted on the support arm 1, when the drive mechanism 2 is activated, the two corner insertion mechanisms can move in opposite directions on the support arm 1. The symmetrical structure of the first corner insertion mechanism 3 and the second corner insertion mechanism 4 helps maintain the balance and stability of the device during operation, reduces vibration and deviation caused by uneven force, ensures the consistency of the two corner insertion mechanisms' actions during the corner insertion process, achieves efficient and accurate double corner insertion operation, and improves packaging efficiency and quality.

[0029] The working process of this embodiment is as follows: When the packaging bag reaches the corner insertion station, the drive mechanism 2 is started, and the first corner insertion mechanism 3 and the second corner insertion mechanism 4 move synchronously. The first corner insertion mechanism 3 and the second corner insertion mechanism 4 act on both sides of the packaging bag respectively.

[0030] In this embodiment, the sliding connection between the first corner fitting mechanism 3 and the support arm 1, and between the second corner fitting mechanism 4 and the support arm 1, is achieved using a linear motion guide mechanism. This linear motion guide mechanism ensures that the first corner fitting mechanism 3 and the second corner fitting mechanism 4 move accurately along a straight line. The linear motion guide mechanism can be a linear guide rail 51 mechanism, a linear optical axis 3513 and a linear bearing mechanism, or other mechanisms capable of achieving linear motion. Specifically, the linear guide rail 51 mechanism consists of a linear guide rail 51 and a sliding block. The sliding block can be equipped with balls or rollers, which cooperate with the linear guide rail 51 to achieve low-friction linear motion. The linear optical axis 3513 and the linear bearing mechanism provide linear guidance for the first corner fitting mechanism 3 and the second corner fitting mechanism 4. The first corner fitting mechanism 3 and the second corner fitting mechanism 4 respectively use linear bearings to cooperate with the linear optical axis 3513. The linear bearings reduce friction, thereby enabling the first corner fitting mechanism 3 and the second corner fitting mechanism 4 to perform stable and smooth linear reciprocating motion along the axial direction of the linear optical axis 3513.

[0031] Preferably, the drive mechanism 2 includes a fixed bracket 21, a first servo motor 22, a first reducer 23, a swing arm 24, a first connecting rod 25, and a second connecting rod 26; the fixed bracket 21 is connected to the support arm 1, the first reducer 23 is mounted on the fixed bracket 21, the output end of the first servo motor 22 is connected to the first reducer 23, and the output end of the first reducer 23 is connected to the swing arm 24; both ends of the swing arm 24 are rotatably connected to the first connecting rod 25 and the second connecting rod 26 respectively, the other end of the first connecting rod 25 is rotatably connected to the first angle insertion mechanism 3, and the second connecting rod 26 is rotatably connected to the second angle insertion mechanism 4.

[0032] In this embodiment, the drive mechanism 2 adopts a structure of swing arm 24 transmission. The servo motor and reducer serve as the power source. Through the rotation of the swing arm 24 and the cooperation of the connecting rod, motion and power can be accurately transmitted to achieve specific motion trajectory and position control.

[0033] Specifically, the linkage mechanism consisting of the swing arm 24, the first connecting rod 25, and the second connecting rod 26 transmits power from the first servo motor 22 to the swing arm 24 after optimization by the first reducer 23. This power is then transmitted through the linkage mechanism to the first angle-adjusting mechanism 3 and the second angle-adjusting mechanism 4, converting the rotational motion of the swing arm 24 into linear motion of the first angle-adjusting mechanism 3 and the second angle-adjusting mechanism 4 on the support arm 1. The entire power transmission process is simple and efficient, effectively converting the motor's power into the motion of the angle-adjusting mechanisms, thus improving energy utilization efficiency. Furthermore, through the rational design of the length of the swing arm 24, the length of the connecting rods, and the position of the connection points, different motion trajectories and motion characteristics can be achieved to adapt to diverse work requirements.

[0034] Preferably, the drive mechanism 2 includes a second servo motor, a second reducer, and a belt; the belt is mounted on the support arm 1 and connected to the first corner fitting mechanism 3 and the second corner fitting mechanism 4 respectively; the second servo motor is connected to the belt drive via the second reducer; the belt drives the first corner fitting mechanism 3 and the second corner fitting mechanism 4 to move closer or further apart. In this embodiment, the drive mechanism 2 adopts a belt drive structure, mainly composed of a second servo motor, a second reducer, and a belt. Specifically, the first corner fitting mechanism 3 and the second corner fitting mechanism 4 are mounted on the support arm 1. The support arm 1 provides motion guidance for the corner fitting mechanisms, ensuring that the two corner fitting mechanisms can only move in a straight line along the length direction of the support arm 1, thereby ensuring that the two corner fitting mechanisms can accurately move closer or further apart. The belt is mounted on the support arm 1 via a drive pulley and a driven pulley, wherein the drive pulley is connected to the output end of the second reducer. When the second servo motor starts, the second reducer drives the drive pulley to rotate, thereby driving the belt to rotate. The belt is connected to the first insertion mechanism 3 and the second insertion mechanism 4 respectively. When the belt moves, the first insertion mechanism 3 and the second insertion mechanism 4 will move along a specific direction under the drive of the belt.

[0035] With the above structural design, compared to some complex transmission structures, belt drives have fewer components, a simpler layout, and occupy less space, making them easier to install and integrate into various devices, effectively saving equipment space. Belt drives possess good flexibility and elasticity, which can buffer vibration and impact during transmission, reduce noise during operation, and provide smooth power for the movement of the first and second angle-fitting mechanisms 3 and 4, thus contributing to improved stability and reliability of the entire system.

[0036] Preferably, the first corner insertion mechanism 3 includes a movable plate 31, a pull rod seat 32, a support plate 33, an upper corner insertion unit 34, and a lower corner insertion unit 35; the movable plate 31 is slidably connected to the support arm 1; the pull rod seat 32 is disposed on the movable plate 31, and the first connecting rod 25 is rotatably connected to the pull rod seat 32; the support plate 33 is disposed on the movable plate 31, and the upper corner insertion unit 34 and the lower corner insertion unit 35 are respectively disposed on the support plate 33. In this embodiment, the upper corner insertion unit 34 and the lower corner insertion unit 35 act on the top and bottom of one side of the packaging bag, respectively. The two corner insertion units are connected to the movable plate 31 through the support plate 33, and the movable plate 31 is connected to the swing arm 24 through the transmission cooperation between the pull rod seat 32 and the first connecting rod 25. When the swing arm 24 rotates, it acts on the first link 25. The first link 25 drives the moving plate 31 to slide on the support arm 1 via the pull rod seat 32, thereby realizing the movement of the upper corner insertion unit 34 and the lower insertion unit. This allows the upper corner insertion unit 34 and the lower insertion unit to act simultaneously on the top and bottom of one side of the packaging bag. Since the swing arm 24 acts on the first link 25 and the second link 26 respectively, the second link 26 also drives the second corner insertion mechanism 4 to move. This allows the first corner insertion mechanism 3 and the second corner insertion mechanism 4 to act simultaneously on both sides of the packaging bag, realizing simultaneous corner insertion operations at the top and bottom of both sides of the packaging bag.

[0037] Preferably, the upper corner unit 34 includes an upper corner shaft 341, an upper connecting block 342, and a corner forming plate 343. One end of the upper corner shaft 341 is connected to the support plate 33, and the other end is connected to the upper connecting block 342. The corner forming plate 343 includes a vertical plate and an inclined plate. The vertical plate is connected to the upper connecting block 342 by bolts. The front end of the inclined plate is provided with a tapered corner. The lower corner unit 35 includes a lower corner shaft 351, a lower connecting block 352, and a lower corner plate 353. One end of the lower corner shaft 351 is connected to the support plate 33, and the other end is connected to the lower connecting block 352. The lower corner plate 353 is connected to the upper connecting block 342 by bolts.

[0038] With the above structural arrangement, the corner forming plate 343 is mounted on the upper corner insert shaft 341 via the upper connecting block 342, and the lower corner insert plate 353 is mounted on the lower corner insert shaft 351 via the lower connecting block 352. The upper corner insert shaft 341 and the lower corner insert shaft 351 are respectively connected to the support plate 33. When the moving plate 31 drives the support plate 33 to move, the upper corner insert shaft 341 and the lower corner insert shaft 351 respectively drive the corner forming plate 343 and the lower corner insert plate 353 to work together on the packaging bag. In this embodiment, the corner forming plate 343 includes a vertical plate and an inclined plate. The vertical plate is used to connect the upper connecting block 342. The vertical plate is provided with a through groove, and bolts are provided on the through groove to connect with the upper connecting block 342, so that the vertical plate can move in the length direction of the through groove, which facilitates the adjustment of the position of the entire corner forming plate 343. The front end of the inclined plate is a tapered corner with a conical structure. The tip of the tapered corner adopts an arc structure to avoid puncturing the packaging bag.

[0039] Preferably, the upper insertion angle shaft 341 and the lower insertion angle shaft 351 have the same structure. The lower insertion angle shaft 351 includes a support rod 3511, a locking block 3512, and a linear optical shaft 3513. One end of the support rod 3511 is connected to the support plate 33, and the linear optical shaft 3513 is slidably disposed in the support rod 3511. The locking block 3512 is disposed at the end of the support rod 3511 and is used to fix the linear optical shaft 3513 in the support rod 3511. In this embodiment, one end of the support rod 3511 is fixedly connected to the support plate seat by a pin or screw, and the other end is provided with a locking block 3512. The locking block 3512 is provided with a locking screw. Tightening the locking screw can fix the linear optical shaft 3513 on the support rod 3511. When the locking screw is loosened, the linear optical shaft 3513 can slide freely for adjustment, which facilitates adjustment of the extension length to better control the insertion angle depth.

[0040] Preferably, the surface of the linear optical axis 3513 is provided with a scale 35131. The operator can intuitively adjust the extension length of the linear optical axis 3513 in the support rod 3511 according to the reading of the scale 35131, so as to achieve precise control of the insertion angle position and meet the high precision requirements of the insertion angle size in different working scenarios.

[0041] Preferably, the movable plate 31 is connected to the support arm 1 via a pair of parallel slide rail assemblies 5. Each slide rail assembly 5 includes a guide rail 51 and a slider 52. The guide rail 51 is bolted to the support arm 1, and the slider 52 slides against the guide rail 51. The movable plate 31 is bolted to the slider 52. In this embodiment, the movable plate 31 is mounted on a pair of slide rail assemblies 5. Using the guide rail 51 as a guiding element, the frictional resistance of the sliding contact between the guide rail 51 and the slider 52 is relatively small, allowing the movable plate 31 to slide easily on the support arm 1. This reduces the power required to drive the movable plate 31 and provides precise linear guidance for its movement, ensuring that the movable plate 31 moves along a predetermined straight trajectory when moving relative to the support arm 11. This reduces deviations and wobbling during movement and helps improve the accuracy of the insertion angle.

[0042] Preferably, the support plate 33 is provided with a pair of parallel mounting grooves 331, and the movable plate 31 is provided with two internally threaded holes that respectively mate with the mounting grooves 331. A locking screw is provided on the mounting groove 331, and the locking screw passes through the mounting groove 331 and is threaded onto the internally threaded hole. The parallel mounting grooves 331 design provides the movable plate 31 with multiple installation position options. The movable plate 31 can be installed in different positions on the support plate 33 according to different working requirements or equipment layouts, increasing the structural flexibility and adaptability of the entire device and better meeting the requirements of various practical application scenarios.

[0043] Preferably, the device further includes a limiting module 6 disposed on the support arm 1. The limiting module 6 includes a limiting bracket 61 and a proximity switch 62. The limiting bracket 61 is provided with a mounting groove, and the proximity switch 62 is adjustablely mounted on the mounting groove, with its detection end facing the first corner insertion mechanism 3. In this embodiment, by setting the proximity switch 62 to accurately detect the position of the first corner insertion mechanism 3, excessive movement of the first corner insertion mechanism 3 can be effectively prevented, avoiding damage to the packaging bag due to exceeding the normal working range, thus ensuring the safe and stable operation of the corner insertion device.

[0044] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model sets up a driving mechanism to simultaneously drive the first corner insertion mechanism and the second corner insertion mechanism to move closer or further away. The driving mechanism can adopt a swing arm transmission or belt transmission structure, which provides smooth transmission and can achieve precise speed and position control. The driving mechanism drives the first corner insertion mechanism and the second corner insertion mechanism to act on both sides of the packaging bag at the same time, avoiding the situation where one side of the packaging bag inserts the corner faster than the other, the corner insertion stability is poor, and the packaging bag is easily pushed to one side. It can achieve precise control of the corner insertion position and effectively improve the corner insertion quality and stability of the packaging bag.

[0045] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A servo gusset device, characterized by, The utility model provides a kind of bag corner forming device, including support arm (1), which is provided with driving mechanism (2) on the support arm;First gusset angle mechanism (3) and second gusset angle mechanism (4) are slidably arranged on the support arm, the first gusset angle mechanism and the second gusset angle mechanism are identical in structure, and symmetrically arranged;The driving mechanism is connected with the first gusset angle mechanism and the second gusset angle mechanism respectively, and drives the first gusset angle mechanism, the second gusset angle mechanism on the support arm mutually or away from each other.

2. The servo gusset device of claim 1, wherein, The driving mechanism includes fixed support (21), first servo motor (22), first speed reducer (23), swing arm (24), first connecting rod (25) and second connecting rod (26);The fixed support is connected with the support arm, the first speed reducer is installed on the fixed support, the output end of the first servo motor is connected with the first speed reducer, and the output end of the first speed reducer is connected with the swing arm;Both ends of the swing arm are rotatably connected with the first connecting rod and the second connecting rod, the other end of the first connecting rod is rotatably connected with the first gusset angle mechanism, and the second connecting rod is rotatably connected with the second gusset angle mechanism.

3. The servo gusset device of claim 1, wherein, The driving mechanism includes second servo motor, second speed reducer and belt;The belt is arranged on the support arm and connected with the first gusset angle mechanism and the second gusset angle mechanism respectively;The second servo motor is drivingly connected with the belt through the second speed reducer;The belt drives the first gusset angle mechanism and the second gusset angle mechanism to approach or move away from each other.

4. The servo gusset device of claim 2, wherein, The first gusset angle mechanism includes moving plate (31), pull rod seat (32), support plate (33), upper gusset angle unit (34) and lower gusset angle unit (35);The moving plate is slidably connected with the support arm;The pull rod seat is arranged on the moving plate, and the first connecting rod is rotatably connected with the pull rod seat;The support plate is arranged on the moving plate, and the upper gusset angle unit and the lower gusset angle unit are arranged on the support plate.

5. The servo gusset device of claim 4, wherein, The upper gusset angle unit includes upper gusset angle shaft (341), upper connecting block (342) and bag corner forming plate (343), one end of the upper gusset angle shaft is connected with the support plate, the other end is connected with the upper connecting block, the bag corner forming plate includes vertical plate and inclined plate, the vertical plate is connected with the upper connecting block through bolt, and the front end of the inclined plate is provided with conical gusset angle;The lower gusset angle unit includes lower gusset angle shaft (351), lower connecting block (352) and lower gusset angle plate (353), one end of the lower gusset angle shaft is connected with the support plate, the other end is connected with the lower connecting block, and the lower gusset angle plate is connected with the upper connecting block through bolt.

6. The servo gusset device of claim 5, wherein, The upper gusset angle shaft and the lower gusset angle shaft are identical in structure, the lower gusset angle shaft includes support rod (3511), locking block (3512) and straight light axis (3513);One end of the support rod is connected with the support plate, and the straight light axis is slidably arranged in the support rod;The locking block is arranged at the end of the support rod, and is used for fixing the straight light axis in the support rod.

7. The servo gusset device of claim 6, wherein, The surface of the straight light axis is provided with scale (35131).

8. The servo gusset device of claim 4, wherein, The moving plate is connected with the support arm through a pair of mutually parallel slide rail assemblies (5), the slide rail assembly comprises a guide rail (51) and a sliding block (52), the guide rail is connected with the support arm through a bolt, the sliding block is slidingly fitted with the guide rail, and the moving plate is connected with the sliding block through a bolt.

9. The servo gusset device of claim 4, wherein, A pair of mutually parallel mounting sliding grooves (331) are arranged on the support plate, two internally threaded holes matched with the mounting sliding grooves are arranged on the moving plate, locking screws are arranged on the mounting sliding grooves, and the locking screws are threadedly screwed on the internally threaded holes after penetrating through the mounting sliding grooves.

10. The servomotivated gussetting device according to any one of claims 1 to 9, characterized in that A limiting module (6) arranged on the support arm is further included, the limiting module comprises a limiting support (61) and a proximity switch (62), the limiting support is provided with a mounting groove, the proximity switch is adjustably mounted on the mounting groove, and a detection end of the proximity switch faces the first gusset mechanism.

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